fix: replace hardcoded /model/ path in validate_jsonl_schema.py docstring

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: tianmu-li

scripts/validate_jsonl_schema.py

@@ -22,7 +22,7 @@
 
 Usage:
     python scripts/validate_jsonl_schema.py FILE [FILE ...]
-    python scripts/validate_jsonl_schema.py /model/agentic_coding_flat.jsonl /model/agentic_workflow_flat.jsonl
+    python scripts/validate_jsonl_schema.py examples/09_MultiTurn/datasets/agentic_coding_flat.jsonl
 """
 
 import argparse